sweep the board

Verb

sweep the board (third-person singular simple present sweeps the board, present participle sweeping the board, simple past and past participle swept the board)

1. (idiomatic) To win all the prizes in a competition.
   • Spadillio first, unconquerable Lord!
     Led off two captive Trumps, and swept the Board.
     As many more Manillio forc'd to yield,
     And march'd a Victor from the verdant Field.1714, Alexander Pope, “Canto III”, in The Rape of the Lock (poetry)
   • It’s always fun when something massive comes along and sweeps the board, giving everything else a thoroughly good kicking – think Titanic, The Silence of the Lambs, or Lord of the Rings. There’s a sort of deranged, gluttonous feeling, a perverse glee in seeing so many dreams trampled on by a...2015 February 23, “Oscars 2015: 10 things we learned”, in The Guardian (London)
2. To take all of the cards.
3. (idiomatic) To get enough votes in an election to gain all the seats.